CONTENTS. V 



XXVII. Further Notes on the Genus ChiroderiiHi. By Oi.dfiki.k 

 Thomas l'"^*' 



XXVIII. On the Development of the Gerruinal Streak of M>j>iis. 



By R. S. Bebgh, of Copenhagen 188 



NeiD Books: — A Catalogue of British Jurassic Gasteropoda. Bv 

 W. H. liuDLESToN, M.A., r.B.S., P.G.S., and Edward Wil- 

 son, F.G.S. — The Jurassic Rocks of the Neighbourhood of 

 Cambridge. By the late Thomas Roberts, M.A., F.G.S. — Tiie 

 Tertiary Fauna of Markusevec in Croatia. [Fauna fbssile Ter- 

 ziaria &c.] By S. Brusina 192-19-") 



On a Sporozoon parasitic in the Muscles of the Crayfish, by MM. F. 



Heuneguy and P. Thelohan 195 



NUMBER LXEI. 



XXIX. The Affinities and Origin of the Tardigrada. By Prof. J. 

 vox Kennel 197 



XXX. On some newly-described Jurassic and Cretaceous Lizards 

 and Rliynchocephalians. By G. A. Boulengkr 204 



XXXI. On some new or rare Scottish Entomostraca. By Thomas 

 Scott, F.L.S., Naturalist to the Fisherv Board for Scotland, and 

 Andrew Scott. (Plates VII. & VIII.)! 210 



XXXII. Descriptions of P'our new Species of Butterflies from 

 Omei-shau, North-west China, in the Collection of H. Grose Smith. 



By II. Grose Smith 21(5 



XXXIII. On a New Species of ApIysiidcB from Jamaica. Bv 

 T. I). A. CocKERELL, F.Z.S., Curator of the Museum of the Institute 



of Jamaica 218 



XXXIV. On the Embryology of the Mites : Segmentation of the 

 Ovum, Origin of the Germinul Layers, and Development of the 

 Appendages in Ixodes. By Julius Wagner, of St. Petersburg. . . . 220 



XXXV. Description of a new Buprestid from Madagascar in the 

 Collection of the Hon. Walter Rothschild. By C. J. Gahan, M.A. 224 



XXXVI. The Specific Rank of Limax cirieren-nir/er, "Wolf. By 

 Wm. Denison Roebuck, F.L.S., Hon. Secretary to the Concho- 



h gical Society 225 



XXXVII. Note on the Variations of the Lateral Shields in the 

 Three-spiued Stickleback {Gastrostens aculeatus). By G. A. 

 Boulenger 228 



XXXVIII. Description of a New Porcupine from East Africa. 



By Oldfielb Thomas 229 



XXXIX. The Formation of the Skeletal Parts in Echinoderms. 



By Carl Chun, of Breslau 231 



XL. Preliminary Account of the Nephridia and Body-Cavity of 

 tlie Larva of Pcdcenunietes vnrians. By Edgar J. Allen, B.Sc, 

 University College, London 2.'}(> 



XLI. Note on a Case of Subdivision of the Median Fin in a 

 Dipnoan Fish. Jiy .\. Smith Woodward. F.L.8 241 



